The preservation of health is a duty. Few seem conscious that there is such a thing as physical morality.

It is the function of parents to see that their children habitually experience the true consequences of their conduct.

The ultimate result of shielding men from the effects of folly, is to fill the world with fools.

The home is the most important factor in civilization, and that civilization is to be measured at different stages largely by the development in the home.

Any piece of knowledge which the pupil has himself acquired- any problem which he has himself solved, becomes, by virtue of the conquest, much more thoroughly his than it could else be. The preliminary activity of mind which his success implies, the concentration of thought necessary to it, and the excitement consequent on his triumph, conspire to register the facts in his memory in a way that no mere information heard from a teacher, or read in a schoolbook, can be registered.

Though, probably, no competent geologist would contend that the European classification of strata is applicable to the globe as a whole; yet most, if not all geologists, write as though it were so.

During human progress, every science is evolved out of its corresponding art.